Draft-equalizer



(No Model.)

W. B; HUBBARD. DRAFT BQUALIZBR..

No. 295.174. Pameed. Mar. 18, 1884.

,il'nrrnn STaTns PATnNT @Trina DRAFT-EQUALIZER.

SPECIFICATION forniing part of Letters Patent No. 295,174, dated March 18, 1884.

Application filed January 9, 1984. (No model.)

To noli whom z' 11m/y concern.:

Be it known that I, WILLIAM B. Hons-inn, a citizen el' Ithe United States, residing at Greenville, in the county of Bond and Stare of Illinois, have invented a new and useful DraltEqualizer, of which the following is a speciiication, reference being had to the accompanying drawings.

This invention relates to draftequalizers arranged to be used in equalizing the draft of two horses; and it has for its object to steady the motion of the vehicle and causethe strain of drawing the saine to come upon thestrongest part ot' the vehicle. A further object of my invention is to give a lifting power lor the horses, instead ol' a downward pull, as is generally the case; and a still further object is to obviate the unpleasant'and injurious jerks that come upon the horses shoulders when the vehicle is traveling over rough roads, and allow each horse to draw equally and steadily, and with a yielding easy movement.

TWith these and other objects in View, the said invention consists in certain details of construction and combination of parts, as hereinafter set forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a plan View ot' my improved draft-equalizer. Fig. 2 is a transverse section on the line .c fr, Fig. l. Fig. 3 isalongitudinal sectional view. Fig. 4 is a side View. Fig. 5 is a view of a inodiiieation.

Like letters of reference indicate corresponding parts in the several figures.

Referring to the drawings, A designates the' front axle, having -thehounds B secured thereto, the bolster C being connected to 'thehounda spring-braces D on each side passing beneath ythe axle and connecting the front and rear ends of the hounds at the under side. Baile or yokes E extend from the front to the rear end ol' the hounds at the top, on each side, said bails or yokes extending over the bolster,

as seen. l

F designates U -shaped pulley-blocks secured to the front of the axle, and carrying pulleys or roilers G, said pulleys and blocks being arranged on each side oi' the axle.

The tongue H is secured to the front ends of the hounds B by a bolt, I, and extends forward in the usual manner, a cap-plate, J, being attached to the rear end of' the tongue, and having the double-tree K, pivoted by a bolt between the cap-plate and the tongue.

L designates poles pivoted by angle-plates M to the ends of the double tree, so as to. forni au elbo\v-joint for the poles, to the front ends of which are attached the whiffletrees N by means of connecting pivoted swinging links O. Chains P are attached to the outer side of one of the poles L, passes through the pulleys or rollers G, and connects with the pole on the opposite side in a similar manner. V, The operation ofmy invention will be readily-understood from the foregoing description, taken in connection with the annexed drauf'- ings. The horses are attached to the whiffietrees in the usual manner, and in drawing the vehicle slide the chain through the pulleys or rollers, so as to equalize the draft of the vehicle. By means of this construction, and by connecting the jointed poles by chains to the axle, the draftof the vehicle is down-under the hounds, and I provide a lifting power iustead of a downward pull. By attaching the whifliet-rees to jointed poles connecting with the sides of the axle the draft of the vehicle is from both sides, iusteadof from the center, as is usually the case, thereby causing the vehicle to run more steadily and with greater ease.

It Willbe seen that the construction above described takes the sudden hard jerks from offthe horses shoulders, so that when traveling over rough roads, should one of the Wheels enter a rut in the road, the joints of the poles L yield, causing the turning of the chain through the 'rollers or pulleys, and instead of jerking the opposite horse back it does not affect him at all, but simply gives him a chance togo ahead and help dranY the vehicle equally with the other horse. My invention obviates the vibration and strain on the tongue and hounds in the ordinary construction, and places it upon the axle, which is well suited to withstand the strain.

a balky horse will readily draw the vehicle, since l provide a rolling movement in place of a dead Weight.

lt will loe apparent that my improved draft- "When inyimproved draft-equalizeris used,

IOO

. withthefrontaxle, having pulleysor rollers at- I equalizer is simple in construction and efcient in operation, and will act to cause the horses to draw equally and with more ease than by the ordinary construction. c

I do not limit inyselt' to incre details of construe-tion, as various modifications may he resorted to without. departing from the spirit or scope ot' my invention.

.As shown in Fig. 5, I may substitute for the elbow-jointed plates which lattaeh the poles to the double-tree asuitably-constructed straight! jointed plate, either construction effecting the object of lny invention.

Having described niy invention, I elain'i as newl. In a draft-equalizer, the combination, with the front axle, having pulleys attached thereto, of the whiietrees secured to poles having a jointed connection with the doubletree, and chains passing through the pulleys and connecting the poles, as set forth.

2. In a-A ttrait-equalizer, the combination,

taehed thereto, ot' chain passing through the pulleys or rollers, and wl'iifi'letrees connecting with the ends 0l" the ehai u and having a jointed connection with the double-tree, as and foi-the purpose set forth.

3. In a drat`t-equalizer, the combination, with the front axle, having pulleys or rollers attached to the front face thereof, of the Chain passingthrougll the pulleys o1' rollers,adouhle tree secured to the tongue,'poles having jointplates connecting with the ends ot' the doubletree, and whiftletrees attached to the poles, as set foi-th. I

4. In a draftequalizer, the combination, with the front axle, having pulleys or rollers attached to the front thereof, ofthe chain passing through the pulleys, poles provided' with elbow-joint plates secured to the doubletree and connecting with the ends ot' the chain, and

whiiiletrees having a link-connection with the' poles, as set `forth.

, 5. In a draft-equalizer, the combination,

with the front axle and hounds,and pulleys or rollers attached to the axle, of the tongue pivoted to the front ends ot' the hounds, a chain passing through the pulleys, poles having a jointed connection with the double-tree,

secured to the tongue, and'whiiiietrees at- WILLIAM B. HUBBARD.

'Vitnesses:

Josnrn F. FoUKE, PETER H. TATE. 

